OK, but I couldn't resist as the search found four in Las Vegas and you said you hadn't found any.
The only one I have been to is not on the list, it was at Desert Rock Sports, but their site doesn't mention it now, maybe because a huge wall opened next door.

In reply to LennyJ1: check this link out someone in the contacts section should be able to fill you in with some good info I would imagine .you could even join I guess and find someone to have a day out withybe ma.

There is another wall now in Summelin area close to the Red Rock Casino Resort ...you can see climbers when driving home from the crags on W Charleston. There is also the biggest rip-off wall in the world somewhere half-way down the strip. I've never climbed on any wall there as when it rains we rest or go to JTree.